Chevy BBC 454 6.385" 4.310" Bore 1.270" .990" Dome Top Forged Pistons Speedmaster billet aluminum spacers provide

Speedmaster billet aluminum spacers provide the benefits of an open carburetor spacer

These Speedmaster tailshaft housings are designed to fit the stock Turbo 400 transmissions

or larger wheels to clear them

they also provide your engine with cleaner air for better performance

this pulley ensures optimal performance and efficiency for supercharged setups

Chevy BBC 454 6.385" 4.310" Bore 1.270" .990" Dome Top Forged Pistons Speedmaster billet aluminum spacers provideSpeedmaster Forged pistons are made from 4032 aluminum alloy for quieter operation and reduced piston to wall clearance. Up to 20% lighter than traditional forged pistons that eliminate harmful stress concentrations for superior strength. Specifically designed for naturally aspirated or moderate nitrous applications.